摘要
目的：进一步探讨微型ｐＨ电极在原位检测人牙菌斑ｐＨ的可行性，了解漱糖后对菌斑ｐＨ的影响。方法：采用微型蜂式ｐＨ指示电极直接测试人牙邻面菌斑ｐＨ变化。结果：微型ｐＨ电极与玻璃ｐＨ大电极所测结果基本一致；漱糖后菌斑ｐＨ呈下降趋势，２０ｍｉｎ时达到最低点；无龋组与龋敏感组之间的ｐＨ改变无显著性差异。结论：微型ｐＨ电极适用于在原位直接测试菌斑ｐＨ；漱糖后菌斑ｐＨ发生改变。
Aim: To evaluate the applicability of pH measurements in situ in human dental plaque using a beetrode microelectrode and to understand variations of plaque pH following a sucrose rinse. Methods: In situ interproximal plaque pH was directly measured with pH microelectrode. Results: The results of examination by means of pH microelectrode and pH glass-electrode were largely the same. Plaque pH values showed descending tendency and was lowest at 20min, and there was no significant difference between caries-free and caries-active. Conclusions: pH microelectrode seems to be a good method for measuring in situ plaque pH. The variations of plaque pH values were recorded after sucrose-challenged, but caries status of the individuals was unrelated to plaque pH.
出处
《牙体牙髓牙周病学杂志》
CAS
1998年第3期159-161,共3页
Chinese Journal of Conservative Dentistry
基金
中国博士后科学基金
国家自然科学基金
关键词
微电极
牙菌斑
PH检测
蔗糖
microelectrode dental plaque pH measurements sucrose
